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To a technique of definition of time of freezing of lake water in a well

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Objects of researching are technology of drilling deep boreholes in ice, technology of researching boreholes and ecologically clean penetration in subglacial Lake Vostok (Antarctica). Drilling operations in the borehole 5G at Russian Antarctic station Vostok had carried out on the technology developed in Saint-Petersburg University, which allowed to uncover subglacial Lake Vostok and allowed to support ecologically safety of relict lake. The goal of further scientific-researching works is to develop a technology of support in working condition the outlet of the borehole in the subglacial lake in process of its researching. This article presents the results of calculations the freezing time of lake water with “positive” temperature, which lifted in the borehole after uncovering subglacial lake, carried out by independent methods. The considered questions of the temperature mode near the boundary “borehole - subglacial Lake Vostok”.

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